The new GDDR4 chips operate at 2400MHz, an unprecedented speed-bin for graphics memory, and also features lower power consumption when compared to the GDDR3. The devices are produced using 80nm process technology, which increases clock-speed potential and lowers overall power consumption. When measured against GDDR3 at the highest comparable speed (2.00GHz), GDDR4 showed a 45% power savings. Samsung said that the first GDDR4 chips have 512Mb capacity.More info over here.
ATI Technologies is projected to release its code-named R580+ product featuring the GDDR4 this summer or fall. The new R580+ will feature the same Radeon X1900 XTX chip, but now equipped with GDDR4 memory at higher clock-speeds compared to today’s GDDR3. The GPU’s memory controller will be reprogrammed to handle higher clock-speeds and the whole R580+ design will allow ATI to test the GDDR4 memory ahead of its broad deployment in the next-generations of products. The product may be approximately 15% faster compared to the current flagship offering from the company. It is highly likely that Samsung will begin shipments of GDDR4 to ATI.
Samsung GDDR4 memory reaches mass production
Posted on Friday, Jul 07 2006 @ 12:26 CEST by Thomas De Maesschalck